Nice Chris! Love your art work!
Well I just pack it in the plastic bottle it came in: Fireball, LTD, Brandy, etc. Other wise I always have a few empty Brandy pints just for such occasions. I've also packed it in pop bottles, empty water bottles (although I don't trust them as much). The apple pie shine I took on the WA Rokslide hike was packed in empty Sparkling Ice bottles. They're long & thin and slip into pack voids well, and the empty bottle, now filled w/ water, slips into the day pouch on my Nimrod Harness very well. As far as pack them out.... Nope, I burn them.
But I have to say my prefered container is the Brandy pints, flat, compact and fits my thigh pocket well.
But I also like that platapus bag idea, mentioned above. But can't burn up them though.
Hunt'nFish